Mercury is used in mercury barometers because
A)it is very heavy - lighter fluids would require a much larger glass column
B)it is very heavy - lighter fluids would require a much shorter glass column
C)it is very light - heavier fluids would require a much larger glass column
D)it is very light - heavier fluids would require a much shorter glass column

Question

Quizplus · Accepted Answer

Mercury is chosen for use in barometers primarily because of its high density. This property allows for a relatively compact instrument since a shorter column of mercury can balance the atmospheric pressure compared to what would be required if a lighter fluid were used.

Mercury Is Used in Mercury Barometers Because